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diff --git a/arch/arm/plat-stmp3xxx/include/mach/pins.h b/arch/arm/plat-stmp3xxx/include/mach/pins.h
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+/*
+ * Freescale STMP37XX/STMP378X Pin multiplexing interface definitions
+ *
+ * Author: Vladislav Buzov <vbuzov@embeddedalley.com>
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ASM_PLAT_PINS_H
+#define __ASM_PLAT_PINS_H
+
+#define STMP3XXX_PINID(bank, pin) (bank * 32 + pin)
+#define STMP3XXX_PINID_TO_BANK(pinid) (pinid / 32)
+#define STMP3XXX_PINID_TO_PINNUM(pinid) (pinid % 32)
+
+/*
+ * Special invalid pin identificator to show a pin doesn't exist
+ */
+#define PINID_NO_PIN STMP3XXX_PINID(0xFF, 0xFF)
+
+#endif /* __ASM_PLAT_PINS_H */